import java.util.Scanner;

public class Text1 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入机票原价");
        int ticket = sc.nextInt();
        System.out.println("请输入当前的月份");
        int month = sc.nextInt();
        System.out.println("请输入当前购买的舱位 0 头等舱 1 经济舱");
        int seat = sc.nextInt();
        if(month >= 5 && month <= 10){
            if(seat == 0){
                ticket = (int)(ticket * 0.9);
            }else if(seat == 1){
                ticket = (int)(ticket * 0.85);
            }else{
                System.out.println("没有这个舱位");
            }
        }else if((month >= 1 && month <= 4)||(month >= 11 && month <= 12)){
            if(seat == 0){
                ticket = (int)(ticket * 0.7);
            }else if(seat == 1){
                ticket = (int)(ticket * 0.65);
            }else{
                System.out.println("没有这个舱位");
            }
        }else{
            //非法数据
            System.out.println("键盘录入的月份不合法");
        }
        System.out.println(ticket);
        }
    }

